Thursday, May 21, 2020

America s Domestic Markets Against Foreign Traders

Occasionally both tariffs (tax that adds to the cost of imported goods) and import quotas (a restriction placed on the quantity of particular good that a country can import) are used to control the quantity of foreign products that can enter a country’s domestic markets. Several arguments have been raised regarding reasons for protecting domestic markets against foreign traders. Nonetheless, protectionism is characterized by several welfare consequences. The arguments for protectionism can be categorized into economic and non-economic. The economic arguments mostly focus on national welfare. On the other hand, arguments for non-economic protectionism are based on national interests. This paper evaluates the potential justifications for protectionism measures. Protectionism Improves National Welfare by Preventing International Price Discrimination Sometimes goods might be sold overseas at prices that are below their production cost and below market price in the domestic market. Cassimatis (2007) argues that, through international price discrimination, import competing industries might be forced to exit the market. Ideally, it is costly to re-establish industries after they have been forced to close down. Although not common in modern times, governments might be justified to effectively set prices of goods that are not domestically produced (imported goods) (Cassimatis 2007). These measures would prevent dumping: the process of exporting goods by a country to another countryShow MoreRelatedCurrency Depreciation, Currency, And Currency1519 Words   |  7 Pagesof a nation’s currency in terms of another currency. Therefore, the exchange rate has two components, the domestic currency and foreign currency, and it can be quoted directly or directly. In a direct quotation, the foreign currency is the base currency and the dom estic currency is the counter currency. While in an indirect quotation, the domestic currency is the base currency and the domestic currency is the counter currency. For example, a United States dollar is equal to $1.1050 in Canada. In thisRead MoreForeign Exchange Markets Trade Currencies1075 Words   |  5 PagesForeign exchange markets trade currencies around the world. Traders in large banks in North America, Europe, and Asia carry out the majority of the buying and selling of foreign exchange. A foreign exchange rate is the price of a country s currency in terms of another currency. Exchange rates are determined in the foreign exchange market. 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Wednesday, May 6, 2020

Journal Article Review The Fitness Benefits of Pushing a...

There are many benefits to living a healthy lifestyle that includes adequate amounts of physical activity. One of the biggest benefits is improved cardiovascular health. Other benefits are reductions in the occurrence of diseases such as heart disease, hypertension, type 2 diabetes, osteoporosis, and certain types of cancers. There is also a decrease in anxiety and depression in physically active individuals. Among women at various ages throughout the lifespan, it has been shown that physical activity positively influences general health, mental health, reduction in the rate of obesity, and overall vitality.1 These same benefits apply to postpartum women particularly improved psychosocial well-being and cardiovascular fitness. Return†¦show more content†¦Each trial of walking was approximately 5 to 6 minutes in length. After each trial, the participants rested until their heart rate returned to resting level. The authors hypothesized that pushing a weighted baby strol ler would meet activity recommendations of public health organizations for moderate-intensity exercise, which their findings supported and proved true for most of the variables considered. At a speed of 3 mph, the mean intensity was 4.8 METs for pushing a single stroller and 5.3 METs for a double stroller, which both the requirement for moderate intensity physical activity (3.0-5.9 METs). At a speed of 4 mph, the mean intensity was 7.0 METs for bother the single and double strollers, which meets the requirement for vigorous intensity physical activity. Overall, the heart rate achieved by the double stroller group was higher than the single stroller group at both speeds. When the intensity was expressed as % HRmax, all of the exercise conditions except pushing a single stroller at 3 mph met the threshold for moderate intensity exercise.1 In a study by Evenson et al,2 they looked at the beliefs, barriers, and enablers of physical activity in postpartum women. This study was an e xtension of the Pregnancy, Infection, and Nutrition (PIN3) Study called the PIN3 Postpartum Study that focused on collecting data from the participants during the postpartum period. The study conducted home interviews

Dan-Erik Nilsson A Research Paper Free Essays

How truly complex and remarkable structures such as the human eye could evolve has almost always been one of the direst questions that have puzzled biologists around the world. We know that human sight relies on the ability of our eye to be able to form a clear and focused image on the retina. There are many researchers who have studied this issue, most of which who have suggested that prior to the evolution of the lens, there was a â€Å"regulatory link between two tiers of genres, those that would later become responsible for controlling lens development, and those that would help give the lens its special physical properties†¦it is†¦This combination of genes which appears to have then been selected in an early vertebrae during the evolution of its visual system, giving rise to the lens† (Current Biology, 2005). We will write a custom essay sample on Dan-Erik Nilsson: A Research Paper or any similar topic only for you Order Now The history of research on this matter is long and extensive, and although there are really no evolutionary biologists known better than Charles Darwin, who stated that â€Å"To suppose that the eye, with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I freely confess, absurd in the highest possible degree† (Ridley, 2004). There are also many other evolutionary biologists who must be taken into consideration here, one in particular to be referenced in this report, Dan-Erik Nilsson. When it comes to a subject such as evolutionary biology, there are plenty of critics and skeptics that are present in this regards. Through natural selection, there have been many very different types of eyes which have emerged in evolutionary history in general, and for instance Darwin, who was one of the first truly recognized, acknowledged from the start that â€Å"the eye would have been a difficult case for his new theory to explain. Difficult, but not impossible. Scientists have come up with scenarios through which the first eye-like structure, a light-sensitive pigmented spot on the skin, could have gone through changes and complexities to form the human eye, with its many parts and astounding abilities† (Evolution Library, 2007). Biologists in general use the range of less complex light sensitive structures that exist in living species today in order to come to hypotheses regarding the various evolutionary stages that eyes may have gone through over time. One evolutionary biologist in general who has sparked much controversy, especially regarding the issue of the evolution of the eye, is Dan-Erik Nilsson. I chose this individual to focus on for this assignment because he has been so renowned and recognized in terms of his contributions to this matter. Specifically, his major contribution to evolution was his demonstration that a primitive optical sense organ could â€Å"evolve into a complex human-like eye within a reasonable period (less than a million years) simply through small mutations and natural selection† (Nilsson, 1994). His demonstration involves discussing how the complex human eye could have possibly evolved through natural selection acting on certain and specific, small variations. He began with a simple patch of light sensitive cells, from which his model evolves until a clear image is produced as a result. Nilsson found that â€Å"eyes corresponding to every stage in this sequence have been found in existing living sequences. The existence of this range of less complex light-sensitive structures supports scientists’ hypotheses about how complex eyes like ours could evolve. The first animals with anything resembling an eye lived about 550 million years ago. And, according to one scientist’s calculations, only 364,000 years would have been needed for a camera-like eye to evolve from a light-sensitive patch† (Evolution Library, 2004). It was found from his discoveries that every change had to confer at least some sort of survival advantage, regardless of how slight each change actually was. Eventually from this what Nilsson found was that eventually the light-sensitive spot evolved into a retina, which is the known term for the layer of cells and pigment at the back of the human eye. Then, â€Å"Over time a lens formed at the front of the eye. It could have arisen as a double-layered transplant tissue containing increasing amounts of liquid that gave it the convex curvature of the human eye† (Evolution Library, 2007). I agree with Nilsson’s views because he shows in all of his work how much time and consideration he has put into the matter and he has solid, concrete proof behind every one of his theories. His life in retrospect also solidifies him as an intelligent, reliable evolutionary biologist, and also his work involving Darwin’s theories, as Nilsson and fellow evolutionary biologists worked to basically disprove many of his known theories. In particular they simulated a model of the eye to find out how difficult evolution really is. Nilsson allowed the shape of the model eye to change at random, in steps of no more than 1% change at a time. â€Å"The model eye then evolved in the computer, with each new generation formed from the optically superior eyes in the previous generation; changes that made the optics worse were rejected, as selection would reject them in nature†¦The work illustrates the value of building models to test our institutions† (Ridley, 2004). Nilsson’s research has absolutely had a great and significant impact on the field of evolutionary biology because his theories have all been so new and innovative and incredibly sufficient of proving that there is in fact an evolution of the eye. Overall from this report we can conclude a number of things, in particular that over his life Dan-Erik Nilsson made some seriously significant contributions to the field through his work in the evolution of the eye theories, and this is not only on his own but in accompaniment with other evolutionary biologists as well. References Current Biology, Vol. 15, Pages 1684-1689, September 20, 2006. DOI 10.1016/j.cub.2005.08.046 Evolution Library. (2007). Evolution of the Eye. Retrieved September 21, 2007, from http://www.pbs.org/wgbh/evolution/library/01/1/l_011_01.html Nilsson, Dan-E. (1994). â€Å"Beware of Pseudo-Science: A Response to David Berlinkski’s Attack on my Calculation of how Long it Takes for an Eye to Evolve†. Talk Reason. Ridley, M. (2004). Evolution of the Eye. Retrieved September 21, 2007, from http://www.blackwellpublishing.com/ridley/a-z/Evolution_of_the_eye.asp How to cite Dan-Erik Nilsson: A Research Paper, Essays Dan-Erik Nilsson A Research Paper Free Essays How truly complex and remarkable structures such as the human eye could evolve has almost always been one of the direst questions that have puzzled biologists around the world. We know that human sight relies on the ability of our eye to be able to form a clear and focused image on the retina. There are many researchers who have studied this issue, most of which who have suggested that prior to the evolution of the lens, there was a â€Å"regulatory link between two tiers of genres, those that would later become responsible for controlling lens development, and those that would help give the lens its special physical properties†¦it is†¦ This combination of genes which appears to have then been selected in an early vertebrae during the evolution of its visual system, giving rise to the lens† (Current Biology, 2005). We will write a custom essay sample on Dan-Erik Nilsson: A Research Paper or any similar topic only for you Order Now The history of research on this matter is long and extensive, and although there are really no evolutionary biologists known better than Charles Darwin, who stated that â€Å"To suppose that the eye, with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I freely confess, absurd in the highest possible degree† (Ridley, 2004). There are also many other evolutionary biologists who must be taken into consideration here, one in particular to be referenced in this report, Dan-Erik Nilsson. When it comes to a subject such as evolutionary biology, there are plenty of critics and skeptics that are present in this regards. Through natural selection, there have been many very different types of eyes which have emerged in evolutionary history in general, and for instance Darwin, who was one of the first truly recognized, acknowledged from the start that â€Å"the eye would have been a difficult case for his new theory to explain. Difficult, but not impossible. Scientists have come up with scenarios through which the first eye-like structure, a light-sensitive pigmented spot on the skin, could have gone through changes and complexities to form the human eye, with its many parts and astounding abilities† (Evolution Library, 2007). Biologists in general use the range of less complex light sensitive structures that exist in living species today in order to come to hypotheses regarding the various evolutionary stages that eyes may have gone through over time. One evolutionary biologist in general who has sparked much controversy, especially regarding the issue of the evolution of the eye, is Dan-Erik Nilsson. I chose this individual to focus on for this assignment because he has been so renowned and recognized in terms of his contributions to this matter. Specifically, his major contribution to evolution was his demonstration that a primitive optical sense organ could â€Å"evolve into a complex human-like eye within a reasonable period (less than a million years) simply through small mutations and natural selection† (Nilsson, 1994). His demonstration involves discussing how the complex human eye could have possibly evolved through natural selection acting on certain and specific, small variations. He began with a simple patch of light sensitive cells, from which his model evolves until a clear image is produced as a result. Nilsson found that â€Å"eyes corresponding to every stage in this sequence have been found in existing living sequences. The existence of this range of less complex light-sensitive structures supports scientists’ hypotheses about how complex eyes like ours could evolve. The first animals with anything resembling an eye lived about 550 million years ago. And, according to one scientist’s calculations, only 364,000 years would have been needed for a camera-like eye to evolve from a light-sensitive patch† (Evolution Library, 2004). It was found from his discoveries that every change had to confer at least some sort of survival advantage, regardless of how slight each change actually was. Eventually from this what Nilsson found was that eventually the light-sensitive spot evolved into a retina, which is the known term for the layer of cells and pigment at the back of the human eye. Then, â€Å"Over time a lens formed at the front of the eye. It could have arisen as a double-layered transplant tissue containing increasing amounts of liquid that gave it the convex curvature of the human eye† (Evolution Library, 2007). I agree with Nilsson’s views because he shows in all of his work how much time and consideration he has put into the matter and he has solid, concrete proof behind every one of his theories. His life in retrospect also solidifies him as an intelligent, reliable evolutionary biologist, and also his work involving Darwin’s theories, as Nilsson and fellow evolutionary biologists worked to basically disprove many of his known theories. In particular they simulated a model of the eye to find out how difficult evolution really is. Nilsson allowed the shape of the model eye to change at random, in steps of no more than 1% change at a time. â€Å"The model eye then evolved in the computer, with each new generation formed from the optically superior eyes in the previous generation; changes that made the optics worse were rejected, as selection would reject them in nature†¦The work illustrates the value of building models to test our institutions† (Ridley, 2004). Nilsson’s research has absolutely had a great and significant impact on the field of evolutionary biology because his theories have all been so new and innovative and incredibly sufficient of proving that there is in fact an evolution of the eye. Overall from this report we can conclude a number of things, in particular that over his life Dan-Erik Nilsson made some seriously significant contributions to the field through his work in the evolution of the eye theories, and this is not only on his own but in accompaniment with other evolutionary biologists as well. References Current Biology, Vol. 15, Pages 1684-1689, September 20, 2006. DOI 10.1016/j.cub.2005.08.046 Evolution Library. (2007). Evolution of the Eye. Retrieved September 21, 2007, from http://www.pbs.org/wgbh/evolution/library/01/1/l_011_01.html Nilsson, Dan-E. (1994). â€Å"Beware of Pseudo-Science: A Response to David Berlinkski’s Attack on my Calculation of how Long it Takes for an Eye to Evolve†. Talk Reason. How to cite Dan-Erik Nilsson: A Research Paper, Essays